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Electro-Voice

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Electro-Voice and DYNACORD in the new Rudolf-Harbig Stadium in Dresden
Posted on Friday, December 4, 2009
Capable of accommodating up to 32,000 spectators, the new Rudolf-Harbig Stadium in Dresden meets the highest international standards – both as a sports arena and as a pro audio installation. Hesse & Partner of Rostock worked with EVI Audio’s Technical Support Team to design and install a world-class sound system featuring DYNACORD ELA and Electro-Voice equipment.
 
In the new Rudolf-Harbig Stadium, the city of Dresden – and its third division football team, SG Dynamo Dresden – possesses one of the most modern and attractive stadiums in Germany. The arena was opened in mid-September after slightly less than two years' construction, and boasts a capacity of over 32,000 spectators, a VIP area capable of accommodating just under 1,200 guests, and a customer-friendly infrastructure. The new building, erected on the site of the old Dynamo Stadium in Dresden's Volkspark, cost around 46 million euros — a budget that left the planners and organizers plenty room for a state-of-the-art stadium design. Already, barely two months since the opening of the new arena, their decision has been vindicated, as the stadium has not only proved a magnificent setting for SG Dynamo Dresden's home games but also impressed FIFA authorities enough for them to sanction it as a venue for the FIFA Women's World Cup in 2011 and the Women's Under-20 World Championships the following year.
 
As was the case with Berlin's Olympic Stadium and the Allianz Arena in Munich, the two major showplaces of German stadium design, the planners attached great importance to the quality of the audio systems installed at Rudolf-Harbig Stadium. After putting the installation out to tender and assessing presentations by a number of rival companies, the clients opted for the solution proposed by the Rostock-based sound company Hesse & Partner. In cooperation with Warnemünde-based Meissner —  the two firms had already worked successfully together on the AWD Arena in Hannover and Hansa Rostock's Ostsee Stadium — Hesse & Partner convinced the decision-makers with a combination of ELA equipment from DYNACORD and pro audio systems from Electro-Voice. EP Meissner's team of electricians handled the loudspeaker installations and the customer-implemented wiring whilst Hesse & Partner supplied the control centres prior to connecting and commissioning the entire system. This, incidentally, is the first stadium system ever to feature the new DSA8405 multi-channel amplifier from DYNACORD with its integrated RCM-810 remote-control modules.
 
The nerve-centre of the system is a main control centre equipped with three 19-inch racks; this is complemented by a secondary control centre on the other side of the stadium equipped with two 19-inch racks (details below). The two control centres are linked via an Electro-Voice NetMax N8000 using fibre optic cable; the control data is transmitted via Ethernet and the audio data by CobraNet. An analogue backup system for control and supervision contacts offers additional security. In the new main grandstand’s Business Club, a touch panel allows audio signal selection and volume control. This panel is also fully integrated into the audio control network via the IRIS-Net software platform.
 
Homogeneous coverage, outstanding intelligibility
Despite the presence of state-of-the-art sound reinforcement equipment proven in countless installations, the Dresden installation nonetheless posed a considerable challenge to Hesse & Partner in the shape of a single steep bank of seats running around the playing area. As a result, wherever in the roof the loudspeaker enclosures were mounted, they would need to provide coverage over a wide vertical angle; moreover, it was also necessary to fly all the enclosures parallel from a single rail running round the front edge of the roof. "Since the enclosures are aimed variously at the top, the middle and the bottom of the seating area, the configuration is somewhat unusual in appearance," explains Oliver Sahm, Director of EVI Audio's Technical Support Team, "but it's the result of careful analysis and testing using the simulation software EASE 4.2. Furthermore, the ADA planning bureau in Berlin corroborated the results we had obtained, squared the theoretical loudspeaker positions with the given facts, and, subsequent to the commissioning, performed the acoustic tuning and documentation of the level of quality level obtained." The evenness of the coverage and the level of intelligibility provided by the seventy-eight Electro-Voice FRX+PI series enclosures was manifestly obvious not only from the acoustic measurements but also to anyone listening to the system in action at the opening ceremony on September 15th, when not one of the show acts (which included Roland Kaiser) felt it necessary to use any additional sound reinforcement equipment, the installed system being perfectly adequate to the needs of every one of them. "This is a concept that points the way ahead," says Oliver Sahm. "Electro-Voice, a name already famous for its reproduction of the spoken word, also delivers genuine full-range performance for speech and music. And DYNACORD with the PROMATRIX system is regarded as the market leader in the field of high-quality ELA systems. Both brands, in fact, have long traditions in ELA and pro sound. Our networking in these fields is unique. We have set a new standard in stadium sound."
 
Main and Sub Control Stations
Main station
DYNACORD PROMATRIX ELA control centre (2400 watts total power)
1 x Electro-Voice NetMax N8000 controller
Ethernet switches
USV
12 x DYNACORD DSA8405 amplifiers with RCM-810 modules
 
Sub station
1 x Electro-Voice NetMax N8000 controller
Ethernet switches
USV
10 x DYNACORD DSA8405 amplifiers with RCM-810 modules
 
About the DSA8405 amplifier
The DSA8405 amplifier from DYNACORD is notable for its innovative technology, its high output with extreme efficiency and its possible integration into an IRIS-Net network. It also offers a unique degree of flexibility thanks to the Variable Load Drive (VLD) of its RCM-810 modules. VLD allows every channel to be configured individually to deliver its maximum power of 500 watts into any load from two ohms to ten ohms.

 

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